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Affinity maturation of SARS-CoV-2 antibodies make them more powerful and resistant to escape mutations

A new study in the journal Immunity shows in fascinating detail how antibodies elicited by this virus show affinity maturation, a process occurring by somatic hypermutation (SHM) in the lymphoid germinal centers, to become more specific in their recognition of antigens.

6 Aug 2021

Multivalent nanobodies show improved neutralization activity against SARS-CoV-2

A state-of-the-art engineering approach toward improving the neutralizing activity of a cross-reactive nanobody, previously generated against the original SARS virus, showed it can be an attractive and viable option against the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The study is published in the journal Advanced Therapeutics.

5 Aug 2021

“Sybodies” protect against SARS-CoV-2 in hamster model

Researchers in China, The Netherlands, France, and Switzerland have identified synthetic nanobodies or “sybodies” that exhibit potent neutralizing activity against severe acute respiratory syndrome coronavirus (SARS-CoV-2) – the agent responsible for the ongoing coronavirus disease 2019 (COVID-19) pandemic.

3 Aug 2021

Researchers discover titanium oxide nanoparticle that recognizes SARS-CoV-2’s non-structural protein 1

A pioneering study reports on the interaction of a tailored titanium oxide nanoparticle (NP) with the full-length SARS-CoV-2 non-structural protein 1 (nsp1). This should be of value in developing new therapeutic tools against coronaviruses that act by targeting their proteins. It could also help map the structure of activated proteins.

2 Aug 2021

Polyuridine sequence of mouse coronavirus can be targeted to prevent host cell death

A new study reports the use of a modified deoxyribonucleic acid (DNA) oligonucleotide that has a 3’ polyadenine (polyA) tail to bind to the 5’-polyU tract in the mouse coronavirus (MHV-A59). Treatment of mouse cells infected with MHV-A59 with this molecule led to a marked reduction in cell deaths.

2 Aug 2021

Could novel biosensors facilitate SARS-CoV-2 antiviral drug research?

An intriguing new study presents a novel approach to biosensor-based evaluation of promising drugs that could inhibit the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) via its 3C-like protease (3CLpro), a viral protease.

2 Aug 2021

SARS-CoV-2 Q493R protein mutation shows resistance to monoclonal antibodies

The Centers for Disease Control and Prevention (CDC) issued a letter detailing a case of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in an immunocompromised patient who did not respond well to monoclonal antibody treatment. The resistance to treatment stemmed from an escape mutation on the spike protein known as Q4923R.

2 Aug 2021

Antibody responses following SARS-CoV-2 infection more potent than vaccine-elicited ones

Researchers in the United States have conducted a study showing the difference in antibody evolution following vaccination against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) between people who have not previously been infected with the virus and those who have.

1 Aug 2021

Study looks at potent phytocompounds from Himalayan herbs to treat COVID-19

Considering the antiviral activity of medicinal herbs, a new study published in the journal Current Pharmacology Reports focuses on the identification of potent phytochemicals from Himalayan herbs, namely, Rheum emodi, Thymus serpyllum, and Artemisia annua, for the treatment of COVID-19.

1 Aug 2021

Study explains how SARS-CoV-2 variants differ in binding to ACE2 receptor

The current study explored ACE2-RBD interactions with four VoCs including the Alpha, Beta, Gamma, and Delta variants.

29 Jul 2021

SARS-CoV-2 variants of concern employ different strategies of antibody escape

A recent study in the field of fluid analysis reveals a diverse set of strategies utilized by alpha and beta variants of the severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2) in order to evade antibodies generated during an earlier infection with this virus. The paper is currently available on the bioRxiv* preprint server while it undergoes a peer-review process.

28 Jul 2021

Study suggests mRNA SARS-CoV-2 vaccines remain effective against variants

A study reports that many VOCs are associated with impaired reduction in their susceptibility to neutralization by COVID-19 vaccines.

27 Jul 2021

Monoclonal antibody CT-P59 demonstrates potent antiviral efficacy against SARS-CoV-2 delta variant

A Korean study has recently demonstrated antiviral potency of monoclonal antibody CT-P59 against the delta variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The experiments conducted in animals infected with the delta variant have shown that CT-P59 is able to reduce symptom intensity and viral replication in the respiratory tract. The study is currently available on the bioRxiv* preprint server.

27 Jul 2021

Activation of integrins by SARS-CoV-2 may be key to infection

A new study describes the key role of membrane proteins called integrins, which are present in epithelia, in the entry and propagation of SARS-CoV-2.

25 Jul 2021

Variations in human ACE2 genetics associated with coronavirus susceptibility

In a recent study, the researchers sought to understand the genetic variability in ACE2 that may contribute to inconsistent clinical outcomes of COVID-19.

25 Jul 2021

Researchers discover camelid-derived two nanobodies that target SARS-CoV-2

A new study has been published on the bioRxiv* preprint server, which has identified and characterized two RBD-targeting neutralizing nanobodies, namely, DL4 and DL28.

23 Jul 2021

Emerging SARS-CoV-2 mutations L452R & Y453F evade cellular immunity

The study, published in the journal Cell Host & Microbe, also showed emerging mutations L452R and Y453F in the SARS-CoV-2 spike receptor-binding motif evade (HLA) A24-restricted cellular immunity. Meanwhile, the L452R enhances spike stability, viral fusogenicity, and viral infectivity. Hence, the findings suggest that HLA-restricted cellular immunity potentially affects the evolution of viral phenotypes.

22 Jul 2021

binding affinity News and Research

Affinity maturation of SARS-CoV-2 antibodies make them more powerful and resistant to escape mutations

Multivalent nanobodies show improved neutralization activity against SARS-CoV-2

“Sybodies” protect against SARS-CoV-2 in hamster model

Researchers discover titanium oxide nanoparticle that recognizes SARS-CoV-2’s non-structural protein 1

Polyuridine sequence of mouse coronavirus can be targeted to prevent host cell death

Could novel biosensors facilitate SARS-CoV-2 antiviral drug research?

SARS-CoV-2 Q493R protein mutation shows resistance to monoclonal antibodies

Antibody responses following SARS-CoV-2 infection more potent than vaccine-elicited ones

Study looks at potent phytocompounds from Himalayan herbs to treat COVID-19

Study explains how SARS-CoV-2 variants differ in binding to ACE2 receptor

SARS-CoV-2 variants of concern employ different strategies of antibody escape

Study suggests mRNA SARS-CoV-2 vaccines remain effective against variants

Monoclonal antibody CT-P59 demonstrates potent antiviral efficacy against SARS-CoV-2 delta variant

Activation of integrins by SARS-CoV-2 may be key to infection

Variations in human ACE2 genetics associated with coronavirus susceptibility

Researchers discover camelid-derived two nanobodies that target SARS-CoV-2

Emerging SARS-CoV-2 mutations L452R & Y453F evade cellular immunity

Structural changes in receptor-binding interface may induce immune fitness of SARS-CoV-2 delta variant

A drug candidate to prevent adverse reactions due to COVID-19 infection or vaccines

Short chain fatty acids have potential therapeutic applications against COVID-19, study suggests

Binding kinetics in drug discovery eBook eBook

How ELRIG Is Helping Mid-Career Scientists Navigate Leadership, Career Change and Redundancy

The role of UV-Vis in biopharma QC

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